Brake-beam.



O H. WILLIAMS, JR.

BRAKE BEAM.

APPLICATION FlLED JUNE 28, 1909.

Patented A5115,

'INVENTOE cH/ gis H. W/LLLFIMS .151. 7 0

WITNESSES Monew a GRAHAM co. PHDTO LYTHQGFTAFHEH$, WASHINGTON D, l:-

iii the i CHARLES H. WILLIAMS, JR., OF CHICAGO, ILLINOIS. ASSIGNOR TQ CEICAGG RAILWAY EQUIPMENT COlvlPANY, D CHICAGG. ILLINOIS. A CORPORATION.

BRAKE-BEAM.

Specification of Letters Patent.

Application filed June 28, 1809. Serial No. 504.824.

To all whom it may concern:

Be it known that l. C/naumcs ll (Yu runs, Jr. a citizen of the United States. residing at Chicago, Illinois, have invented a certain new and usefullmprovement in Brake-Beams, ot which the following is a tull. clear, and exact description. such as will enable others skilled in the art to which it appertains to malie and use the same, reference being had to the accon'ipanying drawings, forming part of this specification, in which- Figure 1 is a plan view of my improved brake beam. Fig. 2 is a detail view of the strut extension.

T his invention relates to a new and useful improvement in brake beams. and is do signed particularly for use as a nigh speed brake beam. These so-called high speed brake beams are largely used on passenger coaches, sleeping and dining cars.

The object of my present invention is to materially increase the ot the compress and tension members without increasing the size of the sleev whe the brake heads now in use can be employed on my improved beam. In this manner I am enabled to get a very strong brake beam, that is, one which will, show a minimum do tion under a maximum load.

Heretoiore, where the size of the so-called sleeve or thrust block is limited to accommodate brake reads ot standard size. such as prescribed by the Master Car Builders, the limit ot sizes of compression members and tension members, of various forms, where they pass through the hrust block or sleeve, has been reached.

once it has been im possible in existing constructions to get heavier terms of compression and tension members through the restricted space allowed, and consequently it has been impossible to supply the demand for stronger or more rigid brake beams where the limitation of size concerning the brake head and sleeve remains the same.

My improved construction, while apparently simple, most important, as it meets recent requirements for increased efliciency in brake beam construction. It possible according to my invention to increase the size of the short tension rod, without interfering with other dimensions, which enables l l i l l l I me to get a brake beam of any rmpiired apacity.

Accord lg to the requirements of the new .Vestinghouse brake, the brake beam must stand a load of tQ,OOO pounds. with mesixteenth 01 an inch (l /1G) deflection. This has been thought impossible ol attainment on account of the limitations of the fixed dimensions. in my constrm-tiou i can use a tension rod 14/8 inches in diameter and increase the size of the compression member. as desired.

riccording to my present invention. construct a sleeve or thrust block in such man nor as to receive the tension and compression members, regardless of the sizes of these members. and then, beyond point of con nection of these parts, provide a seat for the sleeve. lzreterably, this sleeve or thrust block is in the term of a casting suitably reinforced by strengthening ribs. (h to briefly describe my invention in another way, i exteml the sleeve or thrust block in wardly beyond the brake head. where it enlarged to receive the compression and tension members, the said tension member being thus made htn'ter than the length ot the beam, that is, the nuts on the 'hrcads on the ends thereof are located within instead o outside the brake heads.

in the drawings, 1 indicates the compression member, which may be of any dered term, but i have shown such compr .iou member as being in the form cit an inverted ti. 2 is the tension member, which likewise may be of any form, but I have shown it as a solid round rod, threaded on its ends.

3 is the strut, which may be of any de sired character, but which in the particular type oi high speed brake beam shown is constructed of two parts, one of which con stitutes the strut proper, having a seat :tor the compression member and also a seat for the tension member, while the other of said parts 3 is provided with a seat for the tension member and an inward extension which is secured to the strut portion by means of a pin 3 t is the thrust block or sleeve provided with an opening to receive the end ot the compression member and to take up the end thrust thereof. Said block is also provided with an opening for the passage or the tension rod, the outer face of said blocx constituting a seat for the nut 5, by which camber may be placed in the compression member. This casting may be reinforced by strengtln ening ribs 43 and l" as shown.

6 is the mount i'or the b 'ake head. which extends in the form of a trunnion from the thrust block l. This trunnion or brake head mount may be shaped to receive various makes and designs or brake heads, such for instance. as the adjustable head, etc., it it is desired to provide the brake beam with such heads.

1 claim:

1. in a brake beam, the combination of a compression member, a tension member arranged in the plane ot the compression member, and extending beyond the end thereof, and a thrust block through which said tension member passes. means for placing tension in said tension member, said thrust block having a mount for the brake. head beyond the end ot said compression member.

in a brake beam. the combination of a. compression member, a tension member arranged in the plane of the compression member. and extending beyond the end thereof, and a thrust block through which said tension member passes, means for placing tension in said tension member, said thrust blot-l; having a mount for the brake head beyond the end of said tension member.

3. In a brake beam, the combination of a compression member, a tension member arranged in the plane of the compression member. and extending beyond the end thereof, and a thrust block through which said tension member 1 means "for placing ten.- sion in said tension member. said thrust block having a b 'alze head arranged thereon beyond the end of the compression member.

:l. in a brake beam. the combination of a compression member. a tension member arranged in the plane of the compression member. and extending beyond the end thereof, and a thrustblock through which said tension member passes, means for placing tension in said tension member, said thrust block having a brake head arranged thereon beyond the end of the tension member.

A trussed brake beam, comprising a compression member, a tension member arranged in the plane of the compression member and extending beyond the end thereof, and a strut, said tension member having its ends terminating within the line of the brake heads.

(3. In a brake beam, the combination of a commercially rolled compression member, a tension member arranged in the plane of the compression member, and extending beyond the end thereof, a strut, and a thrust block in which said compression member is seated and through which said tension member passes, said thrust block being provided with an outward extension or mount on which the brake head is arranged.

T. A thrust block for brake beams provided with a seat for the compression member, an obliquely disposed opening for the tension member in the plane of the seat for the compression member and whose axial line intersects the axial line of said seat, and an outwardly projecting part for the reception of the brake head.

8. A thrust block for brake beams having a seat for the compression member, an opening for the tension member, an inclined face constituting a seat for the end of the tension member, and an outwardly projecting part for receiving the brake head and reinforcing webs or ribs.

9. A brake beam comprising a compression member, a tension member, thrust blocks, and a strut, said thrust blocks being provided with eccentrically positioned mounts to receive the brake heads.

in testimony whereof I hereunto aifix my signature in the presence of two witnesses, this 19th day of June, 1909.

CHARLES H. WILLIAMS, JP. Witnesses E. B. LEIGH,

CHAS. KUnTz. 

